STM32H757AI datasheet(197/251 Pages) STMICROELECTRONICS

197 / 251 page

DS12931 Rev 1

197/251

STM32H757xI

Electrical characteristics

230

2. TBD stands for “to be defined”.

3. In buffered mode, the output can overshoot above the final value for low input code (starting from the minimum value).

4. TON is the refresh phase duration, while TOFF is the hold phase duration. Refer to the product reference manual for more

details.

Table 103. DAC accuracy(1)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

DNL

Differential non

linearity(2)

DAC output buffer ON

−2-

LSB

DAC output buffer OFF

−2-

Monotonicity

10 bits

INL

Integral non linearity(3)

DAC output buffer ON, CL ≤ 50 pF,

RL ≥ 5 ㏀

−4-

LSB

DAC output buffer OFF,

CL ≤ 50 pF, no RL

−4-

Offset

Offset error at code

0x800 (3)

DAC output

buffer ON,

CL ≤ 50 pF,

RL ≥ 5 ㏀

VREF+ = 3.6 V

±15

LSB

VREF+ = 1.8 V

±30

DAC output buffer OFF,

CL ≤ 50 pF, no RL

±8

Offset1

Offset error at code

0x001(4)

DAC output buffer OFF,

CL ≤ 50 pF, no RL

±5

LSB

OffsetCal

Offset error at code

0x800 after factory

calibration

DAC output

buffer ON,

CL ≤ 50 pF,

RL ≥ 5 ㏀

VREF+ = 3.6 V

±6

LSB

VREF+ = 1.8 V

±7

Gain

Gain error(5)

DAC output buffer ON,CL ≤ 50 pF,

RL ≥ 5 ㏀

±1

DAC output buffer OFF,

CL ≤ 50 pF, no RL

±1

SNR

Signal-to-noise ratio(6)

DAC output buffer ON,CL ≤ 50 pF,

RL ≥ 5 ㏀ , 1 kHz, BW = 500 KHz

67.8

DAC output buffer OFF,

CL ≤ 50 pF, no RL,1 kHz, BW =

500 KHz

67.8

THD

Total harmonic

distortion(6)

DAC output buffer ON, CL ≤ 50 pF,

RL ≥ 5 ㏀ , 1 kHz

−78.6

DAC output buffer OFF,

CL ≤ 50 pF, no RL, 1 kHz

−78.6

SINAD

Signal-to-noise and

distortion ratio(6)

DAC output buffer ON, CL ≤ 50 pF,

RL ≥ 5 ㏀ , 1 kHz

67.5

DAC output buffer OFF,

CL ≤ 50 pF, no RL, 1 kHz

67.5

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